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Litter Hawkt

*330470*www.tennantco.com

Operator Manual

330470Rev. 07 (12-2005)

Thismanual is furnished with each newmodel. It providesnecessary operation and maintenance instructions.

Read thismanual completely andunderstand thema-chine before operating or servicing it.

This machine will provide excellent service. However, thebest results will be obtained at minimum costs if:

S The machine is operated with reasonable care.

S The machine is maintained regularly - per the ma-chine maintenance instructions provided.

S The machine is maintained with manufacturer sup-plied or equivalent parts.

PROTECT THE ENVIRONMENTPlease dispose of packaging materials,old machine components such asbatteries, hazardous fluids such asantifreeze and oil, in a safeenvironmentally way according to yourlocal waste disposal regulations.

Always remember to recycle.

MACHINE DATA

Please fill out at time of installation for future reference.

Model No.- Litter HawkSerial No.-

Machine Options --

Sales Rep. --

Sales Rep. phone no. --

Customer Number --

Installation Date --

Tennant CompanyPO Box 1452Minneapolis, MN 55440Phone: (800) 553--8033 or (763) 523--2850

CALIFORNIA PROPOSITION 65 WARNING:Engine exhaust from this product contains chemicals known to the State of California to cause cancer,birth defects, or other reproductive harm.

Litter Hawk and Thermo Sentry are United States trademarks of Tennant Company.

Specifications and parts are subject to change without notice.

Copyright E 1998--2002, 2005 TENNANT, Printed in U.S.A.

CONTENTS

1Litter Hawkt 330470 (2--05)

CONTENTS

PageSAFETY PRECAUTIONS 2. . . . . . . . . . . . . . . . . . .OPERATION 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

OPERATOR RESPONSIBILITY 4. . . . . . . . . . .MACHINE COMPONENTS 5. . . . . . . . . . . . . . .SYMBOL DEFINITIONS 6. . . . . . . . . . . . . . . . . .CONTROLS AND INSTRUMENTS 7. . . . . . . .OPERATION OF CONTROLS 9. . . . . . . . . . . .

DIRECTIONAL LEVER 9. . . . . . . . . . . . . . . .IGNITION SWITCH 10. . . . . . . . . . . . . . . . . .STEERING HANDLE 10. . . . . . . . . . . . . . . .FUEL LEVEL GAUGE 10. . . . . . . . . . . . . . . .HOURMETER 11. . . . . . . . . . . . . . . . . . . . . .HORN BUTTON 11. . . . . . . . . . . . . . . . . . . . .POWER KILL SWITCH 11. . . . . . . . . . . . . . .STEERING ASSEMBLY KNOB 12. . . . . . . .

OPERATING/HAZARD LIGHTSSWITCH (000000--001579) 12. . . . . .

OPERATING LIGHTS (001580-- ) 12.VOICE BOX SWITCH (OPTION) 13. . . . . .VACUUM FAN/SIDE BRUSHES

SWITCH 13. . . . . . . . . . . . . . . . . . . . . . . . .WATER PUMP SWITCH 14. . . . . . . . . . . . .TURN SIGNAL SWITCH 15. . . . . . . . . . . . .ENGINE TEMPERATURE LIGHT 15. . . . . .ENGINE OIL PRESSURE LIGHT 15. . . . . .CHARGING SYSTEM LIGHT 16. . . . . . . . .THERMO SENTRY LIGHT 16. . . . . . . . . . . .HAZARD LIGHT SWITCH (001580-- ) 16BRAKE PEDAL 17. . . . . . . . . . . . . . . . . . . . .PARKING BRAKE PEDAL 17. . . . . . . . . . . .FUSES 18. . . . . . . . . . . . . . . . . . . . . . . . . . . . .CIRCUIT BREAKERS 18. . . . . . . . . . . . . . . .VACUUM FAN DAMPER HANDLE 19. . . . .THROTTLE LEVER 19. . . . . . . . . . . . . . . . . .VACUUM HEAD CONTROL LEVER 19. . .OPERATOR SEAT 20. . . . . . . . . . . . . . . . . . .HOPPER 20. . . . . . . . . . . . . . . . . . . . . . . . . . .HOPPER SECURING BAR 20. . . . . . . . . . .

HOW THE MACHINE WORKS 21. . . . . . . . . . .PRE-OPERATION CHECKLIST 21. . . . . . . . . .POSITIONING STEERING ASSEMBLY 25. . .STARTING THE MACHINE 27. . . . . . . . . . . . . .OPERATION ON INCLINES 30. . . . . . . . . . . . .CLEANING AND BRUSH INFORMATION 31.FILLING WATER TANK 33. . . . . . . . . . . . . . . . .CLEANING 34. . . . . . . . . . . . . . . . . . . . . . . . . . . .VACUUM WAND OPERATION 36. . . . . . . . . . .STOP CLEANING 39. . . . . . . . . . . . . . . . . . . . . .STOPPING THE MACHINE 40. . . . . . . . . . . . .EMPTYING THE DEBRIS HOPPER 42. . . . . .REMOVING HOPPER DUST FILTERS 47. . . .POST-OPERATION CHECKLIST 50. . . . . . . . .OPTIONS 51. . . . . . . . . . . . . . . . . . . . . . . . . . . . .VOICE BOX 51. . . . . . . . . . . . . . . . . . . . . . . . . . .MACHINE TROUBLESHOOTING 52. . . . . . . .

MAINTENANCE 54. . . . . . . . . . . . . . . . . . . . . . . . . .MAINTENANCE CHART 54. . . . . . . . . . . . . . . .

PageLUBRICATION 56. . . . . . . . . . . . . . . . . . . . . . . . .

ENGINE 56. . . . . . . . . . . . . . . . . . . . . . . . . . . .REAR WHEEL SUPPORT BEARINGS 56.

HYDRAULICS 57. . . . . . . . . . . . . . . . . . . . . . . . .HYDRAULIC FLUID RESERVOIR 57. . . . .HYDRAULIC FLUID 58. . . . . . . . . . . . . . . . .HYDRAULIC HOSES 58. . . . . . . . . . . . . . . .

ENGINE 59. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .COOLING SYSTEM 59. . . . . . . . . . . . . . . . .AIR FILTER 60. . . . . . . . . . . . . . . . . . . . . . . . .FUEL FILTER 60. . . . . . . . . . . . . . . . . . . . . . .FUEL LINES 61. . . . . . . . . . . . . . . . . . . . . . . .BATTERY 61. . . . . . . . . . . . . . . . . . . . . . . . . .

BELTS AND CHAINS 62. . . . . . . . . . . . . . . . . . .ENGINE BELT 62. . . . . . . . . . . . . . . . . . . . . .

DEBRIS HOPPER 63. . . . . . . . . . . . . . . . . . . . . .HOPPER DUST FILTER

INFORMATION 63. . . . . . . . . . . . . . . . . . .THERMO SENTRY 64. . . . . . . . . . . . . . . . . .DIFFUSER SCREENS 64. . . . . . . . . . . . . . .

BRUSHES 65. . . . . . . . . . . . . . . . . . . . . . . . . . . . .SIDE BRUSHES 65. . . . . . . . . . . . . . . . . . . .

REPLACING SIDE BRUSH 66. . . . . . . .DUST CONTROL SYSTEM 67. . . . . . . . . . . . . .

SPRAY NOZZLES 67. . . . . . . . . . . . . . . . . . .CLEANING AND ADJUSTING

SPRAY NOZZLES 67. . . . . . . . . . . . .WATER TANK 69. . . . . . . . . . . . . . . . . . . . . . .

DRAINING THE WATER TANK 69. . . . .SKIRTS AND SEALS 71. . . . . . . . . . . . . . . . . . .

HOPPER COVER SEAL 71. . . . . . . . . . . . . .HOPPER SEAL 71. . . . . . . . . . . . . . . . . . . . .FILTER SEALS 71. . . . . . . . . . . . . . . . . . . . . .FILTER HOUSING COVER SEALS 72. . . .

VACUUM HEAD SKIRT 72. . . . . . . . . . . . . . . . .VACUUM SYSTEM 73. . . . . . . . . . . . . . . . . .VACUUM FAN SCREEN 73. . . . . . . . . . . . .VACUUM HOSES 73. . . . . . . . . . . . . . . . . . .VACUUM WAND DAMPER 73. . . . . . . . . . .

BRAKES AND TIRES 74. . . . . . . . . . . . . . . . . . .BRAKES 74. . . . . . . . . . . . . . . . . . . . . . . . . . .TIRES 75. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

PUSHING, TOWING, ANDTRANSPORTING THE MACHINE 76. . . . .PUSHING OR TOWING THE

MACHINE 76. . . . . . . . . . . . . . . . . . . . . . .TRANSPORTING THE MACHINE 76. . . . . . . .MACHINE JACKING 79. . . . . . . . . . . . . . . . . . . .STORING MACHINE 79. . . . . . . . . . . . . . . . . . .

SPECIFICATIONS 80. . . . . . . . . . . . . . . . . . . . . . . .GENERAL MACHINE PERFORMANCE 80. . .POWER TYPE 81. . . . . . . . . . . . . . . . . . . . . . . . .STEERING 81. . . . . . . . . . . . . . . . . . . . . . . . . . . .HYDRAULIC SYSTEM 81. . . . . . . . . . . . . . . . . .BRAKING SYSTEM 81. . . . . . . . . . . . . . . . . . . .TIRES 81. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .MACHINE DIMENSIONS 82. . . . . . . . . . . . . . . .

SAFETY PRECAUTIONS

Litter Hawkt 330470 (3--02)2

SAFETY PRECAUTIONS

The following symbols are used throughout thismanual as indicated in their description:

WARNING: To warn of hazards orunsafe practices that could result insevere personal injury or death.

FOR SAFETY: To identify actions thatmust be followed for safe operation ofequipment.

The machine is suited to sweep disposabledebris. Do not use the machine other thandescribed in this Operator Manual.

The following information signals potentiallydangerous conditions to the operator orequipment:

WARNING: Machine emits toxic gases.Serious injury or death can result.Provide adequate ventilation.

WARNING: Moving fan blades. Keepaway.

WARNING: Sharp objects in debriscanister. Wear gloves.

WARNING: Heavy hopper. Do notremove without help.

FOR SAFETY:

1. Do not operate machine:-- Unless trained and authorized.-- Unless operation manual is read andunderstood.

-- In flammable or explosive areas unlessdesigned for use in those areas.

-- In areas with possible falling objectsunless equipped with overhead guard.

2. Before starting machine:-- Make sure all safety devices are inplace and operate properly.

-- Check brakes and steering for properoperation.

3. When starting machine:-- Keep foot on brake and directionallever in neutral.

4. When using machine:-- Use brakes to stop machine.-- Go slowly on inclines and slipperysurfaces.

-- Use care when reversing machine.-- Do not carry riders on machine.-- Always follow safety and traffic rules.-- Report machine damage or faultyoperation immediately.

5. Before leaving or servicing machine:-- Stop on level surface.-- Set parking brake.-- Turn off machine and remove key.

6. When servicing machine:-- Avoid moving parts. Do not wear loosejackets, shirts, or sleeves whenworking on machine.

-- Block machine tires before jacking upmachine.

-- Jack up machine at designatedlocations only. Block machine up withjack stands.

-- Use hoist or jack that will support theweight of the machine.

-- Wear eye and ear protection if usingpressurized air or water.

-- Disconnect battery connections beforeworking on machine.

-- Avoid contact with battery acid.-- Use cardboard to locate leakinghydraulic fluid under pressure.

-- Use Tennant supplied or equivalentreplacement parts.

7. When loading/unloading machineonto/off truck or trailer:-- Turn off machine.-- Use truck or trailer that will supportthe weight of the machine.

-- Use winch. Do not drive the machineonto/off the truck or trailer unless theload height is 380 mm (15 in) or lessfrom the ground.

-- Set parking brake after machine isloaded.

-- Block machine tires.-- Tie machine down to truck or trailer.

SAFETY PRECAUTIONS

3Litter Hawkt 330470 (12--99)

The following safety labels are mounted on themachine in the locations indicated. If these or anylabels become damaged or illegible, install a newlabel in its place.

FOR SAFETY LABEL -- Located on the top ofthe steering assembly.

EMISSIONS LABEL -- Located onthe side of the steering assembly.

SHARP OBJECTS HAZARD LABEL -- Locatedon top of the fan housing.

FAN WARNING LABEL --Located on both sides of theradiator.

HEAVY HOPPER LABEL -- Locatedon top of the fan housing.

353030

OPERATION

Litter Hawkt 330470 (6--99)4

OPERATION

OPERATOR RESPONSIBILITY

- The operator’s responsibility is to take careof the daily maintenance and checkups ofthe machine to keep it in good workingcondition. The operator must inform theservice mechanic or supervisor when themaintenance intervals are required as statedin the MAINTENANCE section of thismanual.

- Read this manual carefully before operatingthe machine. View the operation videosupplied with the machine.

FOR SAFETY: Do not operate machine,unless operation manual is read andunderstood.

- Check the machine for shipping damage.Check to make sure the machine iscomplete per shipping instructions.

- Keep your machine regularly maintained byfollowing the maintenance information in thismanual. We recommend taking advantageof a regularly scheduled service contractfrom your Tennant representative.

- Order parts and supplies directly from yourauthorized Tennant representative. Use theparts manual provided when ordering parts.

- After operation, follow the recommendeddaily and hourly procedures stated in theMAINTENANCE CHART.

07324

OPERATION

5Litter Hawkt 330470 (6--99)

MACHINE COMPONENTS

B

D

A

G

E

C

FH

I

J

A. Operator seatB. Instrument panelC. Steering assemblyD. Hopper coverE. Hopper dust filtersF. Side brushesG. Vacuum wandH. Fuel tankI. Engine coverJ. Water tank

OPERATION

Litter Hawkt 330470 (12--99)6

SYMBOL DEFINITIONS

These symbols identify controls, displays, andfeatures on the machine:

On Engine Oil Pressure

Off Engine Water Temperature

Glow Plug (Preheat) Thermo Sentryt

Voltmeter Operating lights

Start Hazard light

Horn Turn signal light (Option)

Vacuum Fan and Side brushes Voice box (option)

Circuit breaker #1 Idle Engine Speed

Circuit breaker #2 Medium Vacuum Fan / Engine Speed

Circuit breaker #3 Fast Vacuum Fan / Engine Speed

Circuit breaker #4 Spray nozzles

Circuit breaker #5 Vacuum head lift

Circuit breaker #6 Vacuum head lowered

OPERATION

7Litter Hawkt 330470 (2--05)

CONTROLS AND INSTRUMENTS

Q

S

P

T

FG

A

D

E

H

JI

K

N

C

BU

M

V

O

W Y

X

L

R

A. Steering assembly knobB. Directional lever (reverse)C. Directional lever (forward)D. Steering handleE. Ignition switchF. Fuel gaugeG. HourmeterH. Glow plug lightI. Vacuum fan damper handleJ. Power kill switchK. Horn buttonL. Operating/hazard lights switch (000000--001579)L. Operating switch (001580-- )M. Brake pedalN. Parking brake pedalO. Circuit breakersP. Voice box switch (option)Q. Vacuum fan/side brushes switchR. Turn signal switch (000000--001579)S. Water pump switchT. Engine temperature lightU. Engine oil pressure lightV. Charging system lightW. Thermo sentry lightX. Hazard Light (000000-- )Y. Turn signal switch (001580-- )

OPERATION

Litter Hawkt 330470 (6--99)8

A

B

A. Throttle leverB. Vacuum head control lever

OPERATION

9Litter Hawkt 330470 (12--99)

OPERATION OF CONTROLS

DIRECTIONAL LEVER

The directional lever controls the direction oftravel of the machine. Change the direction of themachine with the pressure of your hands on thedirectional lever. The machine is very responsiveto the directional lever. Squeeze and release thedirectional lever gently.

Use the brake pedal to stop the machine.

Forward: Gently squeeze the directional lever withyour fingers, pulling the lever back towards thesteering handle. Keep your hands on the steeringhandle.

Reverse: Push the directional lever away from thesteering handle by pressing the lower lever tabswith the operator’s thumbs. Keep your hands onthe steering handle.

Neutral: Gently remove your hands from thedirectional lever and it will return to the Neutralposition.

OPERATION

Litter Hawkt 330470 (12--99)10

IGNITION SWITCH

The ignition switch controls machine power with akey.

FOR SAFETY: When starting machine,keep foot on brake and directional leverin neutral.

Preheat: Turn and hold the key counterclockwise.The glow plug light will come on. When the glowplug light goes out, usually in 5 to 30 secondsdepending on weather conditions, the engine isready to start.

Start: Turn the key all the way clockwise, andrelease the key as soon as the engine starts.

Stop: Turn the key counterclockwise.

Accessory power: Turn the key clockwise to thenext position from the off position.

STEERING HANDLE

The steering handle controls the machine’sdirection. The machine is very responsive to thesteering wheel movements.

Left: Turn the steering handle to the left.

Right: Turn the steering handle to the right.

FUEL LEVEL GAUGE

The fuel level gauge indicates how much fuel is inthe fuel tank.

NOTE: Do not allow the fuel tank to emptycompletely. Air can enter the fuel system, and itmay need bleeding before the next engine start.

OPERATION

11Litter Hawkt 330470 (6--99)

HOURMETER

The hourmeter records the number of hours themachine has been operated. The hourmeterdisplays the number of hours in tenths of an hour.Use this information to determine machinemaintenance intervals.

HORN BUTTON

The horn button controls the horn.

Sound: Push button

POWER KILL SWITCH

The power kill switch halts all power to themachine.

Halt: Push the power kill switch in.

Restart: Turn off the machine with the ignitionswitch. Turn the power kill switch to the right torelease the switch. Restart the machine with theignition switch.

OPERATION

Litter Hawkt 330470 (2--05)12

STEERING ASSEMBLY KNOB

The steering assembly knob secures the steeringassembly to the front riding or rear walkingsteering locations for the steering handle. See thePOSITIONING STEERING ASSEMBLY section ofthis manual.

Tighten: Turn the knob clockwise.

Loosen: Turn the knob counterclockwise.

OPERATING/HAZARD LIGHTS SWITCH(000000--001579)

The operating/hazard light switch controls theheadlights, taillights and hazard light.

Operating lights: Press the top of theoperating/hazard light switch.

Operating/hazard lights: Press the bottom of theoperating/hazard light switch.

Off: Press the switch to the middle off position.

OPERATING LIGHTS SWITCH (001580-- )

The operating light switch controls the headlightsand taillights.

Operating lights: Press the top of theoperating/hazard light switch.

Off: Press the switch to the middle off position.

OPERATION

13Litter Hawkt 330470 (6--99)

VOICE BOX SWITCH (OPTION)

The voice box switch controls the pre--recordedvoice message. See the VOICE BOX section ofthis manual.

Replaying message on : Press and release thetop of the voice box switch.

Message off: Press the bottom of the voice boxswitch.

VACUUM FAN/SIDE BRUSHES SWITCH

The vacuum fan/side brushes switch controls thevacuum fan and side brushes.

Vacuum fan on: Press the top of the vacuumfan/side brush switch. The vacuum fan will turnon. The side brushes will also turn on, but willremain in the raised position.

Vacuum fan on/side brushes down and on: Pressthe bottom of the vacuum fan/side brushesswitch. The vacuum fan will turn on. The sidebrushes will also turn on and lower to the cleaningposition.

Vacuum fan off/side brushes up and off: Press theswitch to the middle off position. The vacuum fanwill turn off. The side brushes will also turn off,and will raise to the off position.

Note: Excessive heat in the hopper will cause theThermo Sentryt to shut off the vacuum fan.If this happens, stop the machine, eliminate thesource of heat. Turn the switch to the off positionand back on to reset.

OPERATION

Litter Hawkt 330470 (12--99)14

WATER PUMP SWITCH

The water pump switch controls the two waterpumps for the dust control system. The waterpumps and the lights on the switch will shut offwhen the water tank is empty. See the DUSTCONTROL SYSTEM in the MAINTENANCEsection of this manual.

Off: Press the switch to the middle off position tostop the water pumps.

Side brush pump on: Press the top of the waterpump switch to activate the steady spray dustcontrol nozzles in front of each side brush. Thelight on the switch will come on while the pumpis on.

Debris hopper pump on: Press the bottom of thewater pump switch to activate the pulsating dustcontrol spray above the debris hopper. The lighton the switch will come on while the pump is on.

OPERATION

15Litter Hawkt 330470 (2--05)

TURN SIGNAL SWITCH

The turn signal switch powers on and off thedirectional signals. A light in the switch will comeon when the turn signals are activated.

Right signal on: Press the right side of the switch

Left signal on: Press the left side of the switch

Signal off: Return the switch to the middle offposition.

ENGINE TEMPERATURE LIGHT

The engine temperature light comes on when thetemperature of the engine coolant is more than113° C (235° F). If the light comes on, stopoperating the machine. Locate the problem andhave it corrected. See the COOLING SYSTEM inthe MAINTENANCE section of this manual.

ENGINE OIL PRESSURE LIGHT

The engine oil pressure light comes on when theengine oil pressure falls below 40kPa (5psi). If thelight comes on, stop operating the machine.Locate the problem, and have it corrected.

(000000--001579)

(001580-- )

OPERATION

Litter Hawkt 330470 (2--05)16

CHARGING SYSTEM LIGHT

The charging system light comes on when thealternator is not operating within normal range;13.5 to 15.5V. If the light comes on, stopoperating the machine. Locate the problem, andhave it corrected.

THERMO SENTRY LIGHT

The Thermo Sentry light comes on when theThermo Sentry senses excessive heat in thehopper, possibly from a fire. The Thermo Sentrywill also shut off the vacuum fan. If this happens,stop the machine and eliminate the source ofheat. Allow the sensor to cool, and it will resetautomatically.

HAZARD LIGHT SWITCH (001580-- )

The hazard light switch controls the hazard lights.

On: Press the center of the hazard light switch.

Off: Press the center of the hazard light switchagain.

OPERATION

17Litter Hawkt 330470 (6--99)

BRAKE PEDAL

The brake pedal stops the machine.

Stop: Release the directional lever and allow it toreturn to the neutral position. Step on the brakepedal.

PARKING BRAKE PEDAL

The parking brake pedal sets and releases thefront wheel brakes of the machine.

Set: Press on the brake pedal as far as possible,then press on the parking brake pedal with the toeportion of your foot to lock the parking brake pedalin place.

FOR SAFETY: Before leaving orservicing machine, stop on levelsurface, set parking brake, turn offmachine, and remove key.

Release: Press on the brake pedal to unlock theparking brake pedal.

OPERATION

Litter Hawkt 330470 (12--99)18

FUSES

Fuses are one-time protection devices designedto stop the flow of current in the event of a circuitoverload. Never substitute higher value fuses thanspecified.

The fuses are located behind the debris hopperwhen viewed from the front of the machine.

Fuse Rating Circuit Protected

FU-1 30 A Glow plug

FU-2 20 A Main

CIRCUIT BREAKERS

The circuit breakers are resettable electricalcircuit protection devices. Their design stops theflow of current in the event of a circuit overload.Once a circuit breaker is tripped, it must be resetmanually. Press the reset button after the breakerhas cooled down. The circuit breakers will notreset until they have had a chance to cool down.

If the overload that caused the circuit breaker totrip is still there, the circuit breaker will continue tostop current flow until the problem is corrected.

The circuit breakers are located on the left side ofthe machine, above the brake pedals.

The chart lists the circuit breakers and theelectrical components they protect.

Circuit Breaker Rating Circuit Protected

CB-1 15 A Main Power

CB-2 15 A Horn

CB-3 15 A Aux lights

CB-4 15 A Headlights / fuel

CB-5 15 A Taillights / turn sig.Backup alm option

CB-6 15 A Voice box option

13

5

2

4 6

OPERATION

19Litter Hawkt 330470 (6--99)

VACUUM FAN DAMPER HANDLE

The vacuum fan damper handle moves thedamper, directing vacuum power to the mainvacuum head or the vacuum wand. The handlecan be positioned with the operator’s hand ifwalking behind the machine or by the operator’sfoot if riding the machine.

Vacuum wand: Turn the handle clockwise.

Main vacuum head: Turn the handlecounterclockwise.

THROTTLE LEVER

The throttle lever is located on the left rear side ofthe machine. It controls the engine speed andvacuum fan power. Raise the throttle lever untildesired engine speed/vacuum power is reached.

Idle: Push the lever all the way down to the idleposition.

Normal operating speed/vacuum power: Raise thelever to the middle speed1 position. This positionworks well for light debris or dusty conditions.

Maximum operating speed/vacuum power: Raisethe lever all the way up to the speed2 position.This position works well for heavier debris or wetconditions.

VACUUM HEAD CONTROL LEVER

The vacuum head control lever is located on theright rear side of the machine. It raises and lowersthe vacuum head. Raise or lower the lever untilthe desired vacuum head position is reached.

Raised position: Lift the lever all the way up.

Lowered position: Push the lever all the way downto the lowered position.

OPERATION

Litter Hawkt 330470 (6--99)20

OPERATOR SEAT

The operator seat is a stationary fixed benchstyle.

HOPPER

The hopper is located in the front of the machineunder the hood. If the hopper is heavy, get help toremove it.



HOPPER SECURING BAR

The hopper is held in place with a securing bar.

Hopper removing position: Pull the bar down intothe lowered position.

Hopper securing position: Hold the hopper inplace and raise the bar up into the locked position.

NOTE: Check that the hopper securing bar is upin the locked position before operating machine.

OPERATION

21Litter Hawkt 330470 (12--99)

HOW THE MACHINE WORKS

The steering handle controls the direction ofmachine travel. The directional lever controls thespeed and forward/reverse direction. The brakepedal slows and stops the machine.

The side brushes sweep debris into the path ofthe vacuum. The vacuum takes debris from thesidewalk or other surfaces into the hopper.

When cleaning is finished, clean the filters andempty the hopper.

PRE-OPERATION CHECKLIST

- Check under the machine for leaks(fuel, oil, coolant, water).

- Check the engine air filter dust cap.

OPERATION

Litter Hawkt 330470 (6--99)22

- Check the engine oil level.

- Check the fuel level gauge.

- Check the coolant in overflow reservoir.


OPERATION

23Litter Hawkt 330470 (12--02)

- Check the brakes for proper operation.

- Check the steering for proper operation.

- Check the inside of the hopper compartmentand vacuum screen for debris. Clean ifrequired.

OPERATION

Litter Hawkt 330470 (12--99)24

- Check hopper, empty if required.



- Check water tank, fill if required.

- Check vacuum hoses and vacuum headskirts for wear.

OPERATION

25Litter Hawkt 330470 (12--99)

POSITIONING STEERING ASSEMBLY

The Litter Hawkt may be operated from twodifferent positions. The operator may sit on themachine and steer from the front, or walk behindthe machine and steer from the rear.

To move the steering assembly from the front orthe rear of the machine:

1. Turn ignition key counterclockwise to stopthe engine. Apply the machine parkingbrake.

2. Turn steering assembly knobcounterclockwise until the steering assemblymay be lifted off the front notched steeringplate.

NOTE: The machine will not operate unless thesteering assembly is held securely in place withthe steering assembly knob.

3. Raise the rear notched steering plate cover,and fold it over onto the seat.

4. Lift the steering assembly off the frontnotched steering plate. Unfold the steeringassembly back over the machine seat.

OPERATION

Litter Hawkt 330470 (12--99)26

5. Position the steering assembly plate overthe rear notched steering plate.

6. Fit the steering assembly plate into the rearnotched steering plate.

7. Turn the steering assembly knob clockwiseuntil steering assembly is secure.

NOTE: The machine will not operate unless thesteering assembly is held securely in place withthe steering assembly knob.

8. Reverse the order of positioning to move thesteering assembly from the rear to the frontnotched steering plate.

OPERATION

27Litter Hawkt 330470 (12--99)

STARTING THE MACHINE

1. Place the directional lever in neutral.


2. Set the machine parking brake.

3. Check that the vacuum fan/side brushesswitch is in the middle off position.

OPERATION

Litter Hawkt 330470 (6--99)28

4. Move the throttle lever to the middle enginethrottle position.

5. Turn and hold the ignition keycounterclockwise. The glow plug light willcome on. Hold the key in this position untilthe light goes out. The engine is now readyto start.

6. Turn the ignition key clockwise until theengine starts.

NOTE: Do not operate the starter motor for morethan 10 seconds at a time or after the engine hasstarted. Allow the starter to cool between startingattempts or damage to the starter motor mayoccur.

7. Allow the engine to warm up two to threeminutes.

WARNING: Engine emits toxic gases.Severe respiratory damage orasphyxiation can result. Provideadequate ventilation. Consult with yourregulatory authorities for exposurelimits. Keep engine properly tuned.

OPERATION

29Litter Hawkt 330470 (6--99)

8. Set the throttle at the desired engine speed.

Normal operating speed/vacuum power:Raise the lever to the middle speed1position. This position works well for lightdebris or dusty conditions.

Maximum operating speed/vacuum power:Raise the lever all the way up to the speed2position. This position works well for heavierdebris or wet conditions.

9. Release the machine parking brake.

10.Drive the machine to the area to be cleaned.

OPERATION

Litter Hawkt 330470 (6--99)30

OPERATION ON INCLINES

Drive the machine slowly on inclines. Use thebrake pedal to control machine speed when ridingand descending inclines.

The maximum rated incline when riding is 8_ witha full hopper and 8_ with an empty hopper. Usecare when walking behind the machine on inclinesof 7_ or more.

FOR SAFETY: When using machine, goslowly on inclines and slipperysurfaces.

Keep all movement on any slope or incline slowand gradual. Do not make any sudden changes inspeed or direction.

Operate the machine up and down inclines. Donot operate the machine across inclines.

Do not turn on inclines unless necessary, andthen turn gradually down hill.

OPERATION

31Litter Hawkt 330470 (6--99)

CLEANING AND BRUSH INFORMATION

Pick up oversized debris before cleaning. Pick uppieces of wire, twine, string, etc., which couldbecome entangled in the brushes. There is onlyone set of side brushes recommended for usewith the Litter Hawkt.

Polypropylene side brush -- A good generalpurpose brush for sweeping light to mediumdebris in outdoor applications. This brush isrecommended for dry or wet conditions.

Plan the cleaning in advance. Try to arrange longruns with minimum stopping and starting. Drivethe straightest path possible. Avoid bumping intoposts or scraping the sides of the machine.

When operating the machine, turn the steeringhandle with a smooth, even motion. Avoid suddenturns, except in emergencies.

The dust control system is useful in dry conditionsto control the dust stirred up by the side brushesand vacuum fan. The system consists of a waterpump switch, water tank, two water pumps andthree spray nozzles.

OPERATION

Litter Hawkt 330470 (12--99)32

The water pump switch allows the operator tochoose between two dust control methods.

The side brushes pump sends a steady spray ofwater out of each nozzle located in front of eachside brush. A full water tank will lastapproximately 86 minutes with the front dustcontrol nozzles on.

The hopper vacuum fan pump sends a pulsatingspray of water out of the nozzle located in thevacuum fan chamber. A full water tank will lastseven hours with the vacuum chamber spray on.

Do not use the water spray dust control systemon wet roads or surfaces. Reduce vacuum powerwhen working through standing water or puddlesto minimize water pick up.

Dust filters will not be harmed by wet sweeping.The filters will remain dry, and will continue towork effectively while wet sweeping.

The debris hopper can be used with or withoutstandard 114 L (30 gallon) size garbage bags asbag liners. Extra bags can be stored in the debrishopper under the working bag, or in the sidesaddlebag.

OPERATION

33Litter Hawkt 330470 (6--99)

FILLING WATER TANK

1. Drive the machine to an accessible watersupply hose. Stop the machine and applythe parking brake. See the STOPPING THEMACHINE section of the manual.

2. Fill the water tank. The fill cap is located ontop of the tank on the left hand side of themachine.

NOTE: The dust control system will stop, and thewater pump switch light will turn off if the watertank runs dry during operation. If this happens,return to water supply and refill the tank. Turn thewater pump switch off and back on again to resetthe switch.

3. Start the machine, release the parking brakeand begin cleaning. See the CLEANINGsection of the manual.

OPERATION

Litter Hawkt 330470 (6--99)34

CLEANING

1. Press the top of the vacuum fan/sidebrushes switch for cleaning without the sidebrushes.

2. Press the bottom of the vacuum fan/sidebrushes switch for cleaning with the sidebrushes.

3. Press the top of the water pump switch tostart the continuous spray dust controlsystems for the side brushes.

4. Press the bottom of the water pump switchto start the pulsating spray dust controlsystems for the debris hopper.

5. Lower the vacuum head with the vacuumhead control lever.

6. Adjust the throttle lever for operatorpreference and/or operating conditions.

OPERATION

35Litter Hawkt 330470 (12--99)

7. Squeeze the directional lever and begincleaning.

8. Quickly raise the vacuum head control leverwhen vacuuming large debris, and lower itagain.

The vacuum head will allow larger debrisunder the front lip of the vacuum head whenit is raised, and will vacuum up the debriswhen it is lowered.

OPERATION

Litter Hawkt 330470 (12--99)36

VACUUM WAND OPERATION

1. Stop machine and apply parking brake. Seethe STOPPING THE MACHINE section ofthe manual.

FOR SAFETY: Before leaving orservicing machine, stop on levelsurface, set parking brake andremove key.

2. Lift and open the vacuum wand door.

3. Extend as much vacuum hose frommachine as required.

OPERATION

37Litter Hawkt 330470 (12--99)

4. Close the vacuum wand door to secure thelength of extended hose.

5. Remove vacuum hose handle from right sidebumper.

6. Connect vacuum hose handle to vacuumhose end.

OPERATION

Litter Hawkt 330470 (12--99)38

7. Turn the vacuum fan damper handleclockwise to transfer the vacuum power fromthe main vacuum to the vacuum wand. Turnthe handle counterclockwise to transfervacuum power back to the main vacuum.

NOTE: The machine will not operate the mainvacuum and the vacuum wand at the same time.

8. Start the machine, release the machineparking brake, and begin vacuuming. Storethe vacuum hose on the rear hose retainerwhen not in use.


9. Place the vacuum hose and handle back intheir storage positions when not using themachine.

OPERATION

39Litter Hawkt 330470 (6--99)

STOP CLEANING

1. Raise the vacuum head with the vacuumhead control lever.

2. Press the water pump switch to the middleoff position.

3. Press the vacuum fan/side brushes switch tothe middle off position.

OPERATION

Litter Hawkt 330470 (6--99)40

STOPPING THE MACHINE

1. Stop cleaning. See the STOP CLEANINGsection of the manual.

2. Release the directional lever. Step on thebrake pedal.

3. Move the throttle lever back into the Idleengine speed position.

OPERATION

41Litter Hawkt 330470 (6--99)

4. Set the machine parking brake.

5. Turn the machine power off. Remove theswitch key.


OPERATION

Litter Hawkt 330470 (12--00)42

EMPTYING THE DEBRIS HOPPER

The debris hopper can be used by itself or with114 L (30 gallon) trash bag liners.

1. Stop cleaning. See the STOP CLEANINGsection of the manual.

2. Drive the machine to the debris site ordebris container.

3. Lower the vacuum head.

4. Stop the machine. See the STOP THEMACHINE section of the manual.

FOR SAFETY: Before leaving or servicingmachine, stop on level surface, set parkingbrake, turn off machine, and remove key.

5. Lift and hold up the hopper cover.

6. Pull on the cover prop rod to lock cover inopen position.

OPERATION

43Litter Hawkt 330470 (12--00)

7. Firmly lower the hopper securing bar tolower and release the debris hopper.


8. Pull hopper down towards front of machineand remove bag liner.

Note: If the operator is not using trash bag liners,simply remove and empty the entire hopper afterdraining any excess water out of hopper.


9. Unplug hopper drain plug to remove anyexcess water from the hopper.

10.Poke a drain hole in the garbage bag liner (ifused) with a screwdriver to allow any excesswater to drain out. Reinsert the screwdriverevery few minutes to clear the opening ofany debris. Replace the drain plug whenwater is finished draining.

OPERATION

Litter Hawkt 330470 (3--02)44

11.Tie off bag and dispose of waste. Wet debriscan be heavy. If the hopper bag liner isheavy, get help to lift and dispose of thedebris.



12.Remove and empty the debris hopper if bagliners are not being used. Wet debris can beheavy. If the hopper is heavy, get help to liftit and dispose of the debris.



13.Clean the inside of the hopper compartmentby scraping any compacted debris with ascraper. Use a stiff broom or brush to cleanthe vacuum screen.

The inner top part of the hoppercompartment can be sprayed with water aswell. Do not spray water on the inside wallsof the hopper compartment or anywhere onthe outside of the hopper compartment. Ifthis is done, water can seep into theelectrical components and damage them.

FOR SAFETY: When servicing machine weareye and ear protection if using pressurized airor water.

OPERATION

45Litter Hawkt 330470 (6--99)

14.Place a new trash bag over the bag liner ifusing trash bags.

15.Insert new bag and liner, or debris hopper ifnot using bags, back in the machine.

16.Check that the hopper track guides areresting properly on the hopper tracks onboth sides of the debris hopper.

OPERATION

Litter Hawkt 330470 (12--00)46

17.Push and hold hopper back into place.Secure the hopper with hopper secure lever.

18.Hold up the hopper cover while pushing theprop rod in.

19.Close the hopper cover.

OPERATION

47Litter Hawkt 330470 (3--02)

REMOVING HOPPER DUST FILTERS

1. Stop the machine, set the parking brake andturn the machine power off.


2. Lift and hold up the hopper cover.

3. Pull on the cover prop rod to lock cover inopen position.

4. Unscrew the dust filter housing cover bolts,and open the dust filter housing covers.

OPERATION

Litter Hawkt 330470 (NIL)48

5. Remove the hopper dust filters from themachine.

6. Clean the dust filters as required. See theDEBRIS HOPPER section in theMAINTENANCE section of the manual.

NOTE: If taken care of properly, the filters canprovide up to two years of service.

7. Clean the diffuser screens in the bottom ofthe filter housings and check for damage.

8. Replace the new or cleaned filters back inthe hopper filter housings.

NOTE: Check that the filters are insertedin an upside down “V” formation withthe taped edges on top and the filterreinforcing screen on the inside of thefilters.

OPERATION

49Litter Hawkt 330470 (NIL)

9. Close the dust filter housing covers andsecure with the housing cover bolts.

10.Hold up the hopper cover while pushing theprop rod in.

11.Close the hopper cover.

OPERATION

Litter Hawkt 330470 (NIL)50

POST-OPERATION CHECKLIST

Check this list of items after you have finishedsweeping:

- Check the vacuum hoses for cracks or wear.

- Check the vacuum fan screen for debris.

- Check the hopper and seals for debris ordamage.

- Check the vacuum head skirts for damageand wear.

- Check for large debris lodged in the vacuumhoses.

- Check for fuel odor that indicates a fuel leak.

- Check under the machine for leak spots(fuel, oil, coolant).

- Check the service records to determinemaintenance requirements.

OPERATION

51Litter Hawkt 330470 (6--99)

OPTIONS

VOICE BOX

The voice box holds an 18 second pre--recordedmessage from the operator that warnspedestrians and other traffic of machine operation.

1. Stop the machine. See the STOPPING THEMACHINE section of the manual.

FOR SAFETY: Before leaving or servicingmachine, stop on level surface, set parkingbrake, turn off machine, and remove key.

2. Turn the machine accessory power on.

3. Lift the hopper cover and connect themicrophone/recording switch to the wireharness on top of the hopper, next the horn.

4. Press and hold the microphone recordingbutton. Record a message up to 18 secondslong into the microphone. Release themicrophone recording button when finished.Disconnect the microphone, and closehopper.

5. Press the top of the voice box switch to playthe recorded message back continuously.Press the bottom of the voice box switch tostop the message from playing.

OPERATION

Litter Hawkt 330470 (12--99)52

MACHINE TROUBLESHOOTING

Problem Cause Remedy

Machine does not start Glow plug not warmed up properly Turn key to warm up glow plug

Power kill switch on Turn kill switch clockwise until itpops up. Turn machine off and on

Steering assembly safetyswitch on

Tighten steering assembly knob

Fuel filter plugged Replace fuel filter

Fuel pump damaged Replace fuel pump

Main fuse blown Check fuses

Machine does not propel Parking brake on Release parking brake

Towing valve open Turn valve to vertical position

Poor cleaning performance Vacuum head or hose clogged Remove clog

Hopper dust filters clogged Clean or replace dust filter

Hopper vacuum fan clogged Clean vacuum fan screen

Side brush bristles worn Replace side brushes

Side brush drive failure Contact Tennant servicepersonnel

Vacuum head not lowered Lower vacuum head

Vacuum head skirt damaged Replace worn vacuum skirt

Debris hopper full Empty debris hopper

Driving too fast for conditions Decrease operating speed

Engine throttle too low Increase engine throttle

Hopper seals worn or damaged Replace hopper seals

Vacuum damper in the wrongposition

Turn damper lever to changevacuum damper position

Vacuum fan failure Contact Tennant servicepersonnel

Vacuum fan failure Thermo Sentryt activated Allow Thermo Sentry to cool andreset

Hopper cover safety switch on Lower hopper cover

Low vacuum fan speed Soft start not functioning Contact Tennant servicepersonnel

OPERATION

53Litter Hawkt 330470 (2--05)

Excessive dusting Dust control nozzles clogged Clean nozzles

Wet dust control system not on Press water pump switch to acti-vate one of the water pumps

Water tank empty Fill water tank

Water hose damaged Replace water hose

Water pump failure Contact Tennant service

personnel

Dust control spray nozzles notproperly aligned

Realign dust control spray nozzles

Filter outlet diffusers clogged Clean diffusers

Filter damaged Replace damaged filter

MAINTENANCE

Litter Hawkt 330470 (12--02)54

MAINTENANCE

8

1012

6

9

5

7

1 2

3 4

131511

14

13

15

15

2

1

MAINTENANCE CHART

NOTE: Check procedures indicated (H) after the first 50 hours of operation.

Interval Key Description ProcedureLubricant/

Fluid

No. ofServicePoints

Daily 1 Side brushes Check for damage, wear andadjustment

-- 2

Check brush pattern -- 2

2 Hopper dust filters Clean and check for damage -- 2

2 Diffuser screens Clean and check for damage -- 2

4 Vacuum fan screen Check for debris and clean -- 1

4 Vacuum fan damper Check for debris and clean -- 1

9 Engine air filter Check dust cap -- 1g

Replace element as necessary -- 1

9 Engine crankcase Check oil level EO 1

13 Vacuum hoses Check for damage, wear andblockage

-- 2

14 Vacuum head and skirt Check for damage and wear -- 1

15 Spray nozzles Check for damage, wear andadjustment

-- 3

MAINTENANCE

55Litter Hawkt 330470 (12--99)

Interval Key Description ProcedureLubricant/

Fluid

No. ofServicePoints

100 Hours 2 Filter seals Check for damage or wear -- 8

2 Filter housing cover seals Check for damage or wear -- 2

4 Hopper seal Check for damage or wear -- 1

3 Hopper cover seal Check for damage or wear -- 1

5,7 Tires Check for correct pressure,damage or wear

-- 4

6 Hydraulic fluid reservoir Check fluid level HYDO 1

8 Radiator Clean core exterior -- 1

Check coolant level -- 1

9 Engine Replace air filter element -- 1

9 Engine crankcase Change oil and filter element EO 1

9 Engine belt Check belt tension -- 1

9 Fuel lines Check for damage and wear -- --

200 Hours 8 Radiator hoses and clamps Check for tightness and wear -- 2

10 Brake pedal Check travel adjustment -- 1

400 Hours 9 Engine Change fuel filter -- 1

7 Rear wheel supportbearings

Check and lubricate SPL 2

800 Hours 6 Hydraulic fluid reservoir Change hydraulic fluid HYDO 1y

Replace suction strainer -- 1

Replace hydraulic breather cap -- 1

12 Hydraulic fluid filter Change filter element -- 1

-- Hydraulic hoses Check for wear and damage -- All

-- Water lines and clamps Check for damage, tension andwear

-- 11/20

8 Cooling system Flush and change engine coolant WG 1

5,7 Wheel nuts HTorque wheel nuts -- 4

11 Battery HClean and tighten battery cableconnections

-- 1

LUBRICANT/FLUIDEO Engine oil, diesel rating above CD grade only. . . .HYDO... Tennant or approved hydraulic fluidSPL..... Special lubricant, Lubriplate EMB grease (TENNANT part no. 01433--1)WG..... Water and permanent--type ethylene glycol anti--freeze, --34° C (--30° F)

NOTE: More frequent intervals may be required in extremely dusty conditions.

MAINTENANCE

Litter Hawkt 330470 (12--99)56

LUBRICATION

ENGINE

Check the engine oil level daily. Change theengine oil and oil filter after every 100 hours ofoperation. Use engine oil with a diesel ratingabove CD grade.

Fill the engine with oil to the level indicated on theoil dipstick. Low oil level is indicated by the markclosest to the end of the dipstick. Full level isindicated by the mark closest to the top of thedipstick. The engine oil capacity is 3.25 L (3.4 qt)without the oil filter.

The engine oil drain plug is located underneaththe machine on the bottom of the oil pan.

The engine oil filter is mounted on the right side ofthe machine, under the engine alternator.


REAR WHEEL SUPPORT BEARINGS

The rear wheel support bearings have two greasefittings on the collar between the bearings. Theyare located at the base of the rear wheel supportshaft, in front of the radiator.

Lubricate with Lubriplate EMB grease (Tennantpart number 01433--1) after every 400 hours ofmachine operation.

MAINTENANCE

57Litter Hawkt 330470 (12--99)

HYDRAULICS

HYDRAULIC FLUID RESERVOIR

The reservoir is located on the right side of themachine under the right side foot rest.

Remove the two mounting screws and theprotective cover plate to access the hydraulic tankand filler cap.

The filler cap is mounted on top of the reservoir. Ithas a built-in breather and fluid level dipstick.Replace the cap after every 800 hours ofoperation.

Lubricate the filler cap gasket with a film ofhydraulic fluid before putting the cap back on thereservoir.

The reservoir has a built-in strainer outlet thatfilters hydraulic fluid before it enters the system.Replace the strainer after every 800 hours ofoperation.

Check the hydraulic fluid level at operatingtemperature after every 100 hours of operation.The end of the dipstick is marked with FULL andADD levels to indicate the level of hydraulic fluidin the reservoir.

ATTENTION! Do not overfill thehydraulic fluid reservoir or operate themachine with a low level of hydraulicfluid in the reservoir. Damage to themachine hydraulic system may result.

Drain and refill the hydraulic fluid reservoir withnew hydraulic fluid after every 800 hours ofoperation.

The hydraulic fluid filter is located on the left sideof the engine compartment, close to the brakepedal on the left side of the machine. Replace thefilter element after every 800 hours of operation.

MAINTENANCE

Litter Hawkt 330470 (6--99)58

HYDRAULIC FLUID

The quality and condition of the hydraulic fluidplay a very important role in how well the machineoperates. Tennant’s hydraulic fluid is speciallyselected to meet the needs of Tennant machines.

Tennant’s hydraulic fluids provide a longer life forthe hydraulic components. There are two fluidsavailable for different temperature ranges:

Tennant hydraulic fluid

Part number Ambient temperature

65869 above 7_ C (45_ F)

65870 below 7_ C (45_ F)

The higher temperature fluid has a higherviscosity and should not be used at the lowertemperatures. Damage to the hydraulic pumpsmay occur because of improper lubrication.

The lower temperature fluid is a thinner fluid forcolder temperatures.

If a locally available hydraulic fluid is used, makesure the specifications match Tennant hydraulicfluid specifications. Using substitute fluids cancause premature failure of hydraulic components.

ATTENTION! Hydraulic componentsdepend on system hydraulic fluid forinternal lubrication. Malfunctions,accelerated wear, and damage will resultif dirt or other contaminants enter thehydraulic system.

HYDRAULIC HOSES

Check the hydraulic hoses after every 800 hoursof operation for wear or damage.

Fluid escaping at high pressure from a very smallhole can be almost invisible, and can causeserious injuries.

See a doctor at once if injury results fromescaping hydraulic fluid. Serious infection orreaction can develop if proper medical treatmentis not given immediately.

FOR SAFETY: When servicing machine,use cardboard to locate leakinghydraulic fluid under pressure.

If you discover a fluid leak, contact your mechanicor supervisor.

00002

MAINTENANCE

59Litter Hawkt 330470 (6--99)

ENGINE

COOLING SYSTEM

Check the radiator coolant level every 100 hoursof operation. Use clean water mixed with apermanent--type, ethylene glycol antifreeze to a--34° C (--30° F) rating.

FOR SAFETY: When servicing machine,avoid contact with hot engine coolant.


Check the radiator hoses and clamps every 200hours of operation. Tighten the clamps if they areloose. Replace the hoses and clamps if the hosesare cracked, hardened or swollen.

Check the radiator core exterior and hydrauliccooler fins for debris every 100 hours ofoperation. Blow or rinse all dust, which may havecollected on the radiator, in through the grill andradiator fins, opposite the direction of normal airflow. Be careful not to bend the cooling fins whencleaning. Clean thoroughly to prevent the finsbecoming encrusted with dust. Clean the radiatorand cooler only after the radiator has cooled toavoid cracking.

FOR SAFETY: When servicing machine,wear eye and ear protection if usingpressurized air or water.


Flush the radiator and cooling system every 800hours of operation, using a dependable cleaningcompound.

MAINTENANCE

Litter Hawkt 330470 (6--99)60

AIR FILTER

The engine air filter housing has an end cap, arubber dust cap and a dry cartridge--type air filterelement. Check the dust cap daily to make sure itis expelling dust. Replace the dust cap if therubber is worn.

The air filter must be replaced every 100 hours orif it becomes damaged. The air filter cannot becleaned.

Before placing new filter in housing, carefullyclean interior of filter housing and end cap withdamp cloth.

Install the filter end cap on the air filter housingwith the arrows pointing up and the rubber dustcap on the bottom.

FUEL FILTER

The fuel filter has an element that filters impuritiesfrom the diesel fuel. It is located on the left side ofthe engine in the engine compartment.

Replace the fuel filter after every 400 hours ofoperation.

FOR SAFETY: When servicing machine,keep flames and sparks away from fuelsystem service area. Keep area wellventilated.

MAINTENANCE

61Litter Hawkt 330470 (6--99)

FUEL LINES

Check the fuel lines every 100 hours of operation.If a band clamp becomes loose, apply oil to thescrew on the band, and securely tighten the band.

Made of rubber, the fuel lines may become wornout whether the engine has been used much ornot. Replace the fuel lines and hose clamps everytwo years.

FOR SAFETY: When servicing machine,keep flames and sparks away from fuelsystem service area. Keep area wellventilated.

BATTERY

The battery for the machine is a low maintenancebattery. Do not add water to the battery, orremove the battery vent plugs.

The battery is located in the front of the enginecompartment.

After the first 50 hours of operation, and afterevery 800 hours after that, clean and tighten thebattery connections.

FOR SAFETY: When servicing machine,avoid contact with battery acid.

MAINTENANCE

Litter Hawkt 330470 (6--99)62

BELTS AND CHAINS

ENGINE BELT

The engine fan belt is driven by the enginecrankshaft pulley and drives the alternator pulley.Proper belt tension is 10 mm (0.40 in) from aforce of 10 kg (22 lb) applied at the mid-point ofthe longest span.

Check and adjust the belt tension every 100 hoursof operation.

WARNING: Moving Belt And Fan Blades.Keep Away.

MAINTENANCE

63Litter Hawkt 330470 (6--01)

DEBRIS HOPPER

HOPPER DUST FILTER INFORMATION

The hopper dust filters filter the air pulled up fromthe hopper. The filters need to be removed andcleaned to remove debris and dust particles.Clean the filters daily after emptying the hopper.If taken care of properly, the filters can provide upto two years of service.

The filter panel media is a synthetic material, andcan be either gently shaken or tapped to cleanwhen dry or washed clean with a garden hose orthe filter cleaning tool (option):

FOR SAFETY: When servicing machine,wear eye and ear protection if usingpressurized air or water.

D Dry -- Remove the filters and gently tap themon a hard surface or over a wastebasket toclean. The filters can be placed inside agarbage bag before tapping to help containdust.

D WATER -- Rinse the dust filters with agarden hose or the filter cleaning tool(option) until they are clean. The filtersshould be left out to dry overnight. If thefilters are still damp when reinstalled, allowthe machine to run stationary with the fan onfor 5--10 minutes. The fan airflow will dry outthe filters. If the machine is not going to beused after the filters are washed, it isrecommended that the filters be left out todry to prevent mold from developing.

NOTE: Check that the filters are insertedin an upside down “V” formation withthe taped edges on top.

MAINTENANCE

Litter Hawkt 330470 (6--99)64

THERMO SENTRYt

The Thermo Sentryt is located in the vacuum fancompartment, above the debris hopper.

If a fire ignites in the hopper, the Thermo Sentrytlight will come on, and the Thermo Sentryt willshut off the vacuum fan. If this occurs, drive themachine to a safe location and eliminate thesource of heat. Turn the vacuum fan switch offand back on to reset the vacuum fan.

DIFFUSER SCREENS

The diffuser screens are located on the bottom ofthe filter housings. Clean and check the screensfor damage daily.

MAINTENANCE

65Litter Hawkt 330470 (12--99)

BRUSHES

SIDE BRUSHES

The side brushes sweep debris from the outeredges of the machine into the path of the mainvacuum head.

Check the brushes daily for wear or damage.Remove any string or wire found tangled on theside brushes or side brush drive hubs.

Check the side brush pattern daily. The side brushbristles should contact the floor in an 8 o’clock to4 o’clock pattern when the brush is in motion.

Adjust the side to side position of the brusheswith the side brush bracket weldments in the frontof the side brush arms. A spacer can be added tothe top bolt of the right side mounting bracket, andlower bolt on the left side mounting bracket, tohelp give the brushes proper tilt.

Adjust the vertical tension of the brushes with thetension spring bolt eyes. Turn the bolt eyescounterclockwise to increase the brush contactwith the sweeping surface, and clockwise todecrease the brush contact with the sweepingsurface.

MAINTENANCE

Litter Hawkt 330470 (6--99)66

The side brush should be replaced when it nolonger sweeps effectively for your application. Aguideline length is when the remaining bristlesmeasure 75 mm (3 in) in length. You may need toreplace the side brush sooner if you are sweepinglight litter or use a brush with shorter bristles if youare sweeping heavy debris.

REPLACING SIDE BRUSH



2. Remove the side brush retaining pin fromthe side brush drive shaft by pulling the pinkeeper off over the end of the pin.

3. Slide the side brush and washer off the sidebrush drive shaft.

4. Slide the washer and new side brush ontothe side brush drive shaft.

5. Insert the side brush retaining pin throughthe side brush hub and shaft.

6. Secure the pin by clipping the pin keeperover the end of the pin.

MAINTENANCE

67Litter Hawkt 330470 (6--99)

DUST CONTROL SYSTEM

SPRAY NOZZLES

Check the spray nozzles daily for debris andadjustment. Spray the vacuum fan housing outwith a garden hose daily to keep the debrishopper nozzle clean.

FOR SAFETY: Wear eye and earprotection if using pressurized airor water.

If any of the spray nozzles become blocked orclogged, they will have to be removed andcleaned.

CLEANING AND ADJUSTING SPRAY NOZZLES



2. Turn the plastic nozzle heads 1/4 turncounterclockwise and pull straight out toremove them.

3. Remove and clean the spray nozzle filterscreen.

MAINTENANCE

Litter Hawkt 330470 (12--99)68

4. Use a piece of fine stripped electrical wire toremove any blockage from the spray nozzle.

5. Replace the filter screen and reassemble thespray nozzle. Press the spray nozzle headback into position, and secure with a 1/4clockwise turn.

6. Turn the machine power on. Do not start themachine. Press the vacuum fan switch on.

7. Press the top of the water pump switch toturn the side brush spray nozzles on.

8. Use a standard screwdriver to turn the spraynozzle heads and adjust the spray patternwhile the nozzles are spraying.

9. The adjusted side brush spray patternshould form a wide “V” pattern in front of themachine, intersecting in between thebrushes.

10.Press the bottom of the water pump switchto turn the debris hopper spray nozzle on.

11.Use a standard screwdriver to turn the spraynozzle head and adjust the spray patternwhile the nozzle is spraying.

12.The adjusted debris hopper spray nozzleshould spray over the main vacuum hoseopening.

MAINTENANCE

69Litter Hawkt 330470 (6--99)

WATER TANK

The water tank holds up to 45.5 L(12 gallons) of water for the dust control system.

The tank should be drained before storing themachine for an extended period of time.

Check the water lines and clamps for damage,tension and wear every 800 hours.

DRAINING THE WATER TANK



2. Turn one of the plastic nozzle heads 1/4 turncounterclockwise and pull the nozzle straightout to remove it.

MAINTENANCE

Litter Hawkt 330470 (6--99)70

3. Remove the spray nozzle filter screen.

4. Turn the machine power on. Press thevacuum fan switch on.

5. Press the bottom of the water pump switchto turn the side brush spray nozzles on.

6. Allow the pump to operate until all the waterdrains out of the water reservoir.

7. Press the water pump switch to the middleoff position.

8. Press the vacuum fan switch to the middleoff position.

9. Turn the machine power off.

10.Replace the filter screen and spray nozzlehead on the machine.

MAINTENANCE

71Litter Hawkt 330470 (12--99)

SKIRTS AND SEALS

HOPPER COVER SEAL

The hopper cover seal is located along the bottomedge of the hopper cover. The hopper cover restson this seal when it is setting in the proper closedcleaning position.

Check the seal for wear or damage after every100 hours of operation.

HOPPER SEAL

The hopper seal is located around the edges ofthe vacuum fan compartment. The lip of thehopper is secured against this seal when thehopper is locked in the proper cleaning position.

Check the seal for wear or damage after every100 hours of operation.

FILTER SEALS

The filter seals are located on each end of thehopper filters. The filters are kept in place with thefilter housing covers.

Check the filter seals for wear or damage afterevery 100 hours of operation.

MAINTENANCE

Litter Hawkt 330470 (12--99)72

FILTER HOUSING COVER SEALS

The filter housing cover seals are located on theinside of each filter housing cover. The filterhousing covers provide access to the filters andkeep the filters in place while the machine isoperating.

Check the filter housing cover seals for wear ordamage after every 100 hours of operation.

VACUUM HEAD SKIRT

The vacuum head skirt is located on the bottom ofthe vacuum head. When the vacuum head islowered, the skirt should just rest on the cleaningsurface along its entire length.

Check the skirts for wear or damage andadjustment daily.

MAINTENANCE

73Litter Hawkt 330470 (3--02)

VACUUM SYSTEM

VACUUM FAN SCREEN

The vacuum fan screen is located inside thehopper compartment, Check the vacuum fanscreen for debris daily. Clean with a stiff broom ifrequired.

The inner top part of the hoppercompartment can be sprayed with water aswell. Do not spray water on the inside wallsof the hopper compartment or anywhere onthe outside of the hopper compartment. Ifthis is done, water can seep into theelectrical components and damage them.

FOR SAFETY: When servicing machine, weareye and ear protection if using pressurized airor water.

VACUUM HOSES

check the vacuum hoses for blockage anddamage daily.

VACUUM WAND DAMPER

The vacuum wand damper is located behind thevacuum fan above the debris hopper. The damperis operated with the vacuum wand damper handleand controls the vacuum fan air flow between themain vacuum head and the vacuum wand. If thesurface surrounding the vacuum hose openings isdirty, the damper will not seal properly.

Check the vacuum damper for proper operationand debris daily. Wash the around the vacuum fandamper with a garden hose daily after using themachine.

FOR SAFETY: When servicing machine, weareye and ear protection if using pressurized airor water.

MAINTENANCE

Litter Hawkt 330470 (12--99)74

BRAKES AND TIRES

BRAKES

The brakes on the machine are front wheel diskbrakes. The brakes are operated by the brakepedal and connecting rods.

Check the brake adjustment after every 200 hoursof operation. If the brake does not respond well topressure on the brake pedal, you may need toadjust the brake.

The foot pedal should not travel more than25.4 mm (1 in) to engage the brake.

To Adjust Brakes:

Park the machine on a level surface. Turn themachine off and block the tires.

FOR SAFETY: Before leaving orservicing machine, stop on level surfaceturn off machine and remove key.

Jack up the machine, and remove the left fronttire to access the brake adjustment rod.

FOR SAFETY: When servicing machine,Block machine tires before jacking upmachine.

Loosen the brake adjustment nuts. Rotate thebrake extension arm and draw the ends inward totighten. Secure with adjustment nuts.

Adjust the brake connecting rods so the brakepedal travels no more than 25.4 mm (1 in) toengage the brakes. Readjust the brakes ifnecessary.

MAINTENANCE

75Litter Hawkt 330470 (6--01)

TIRES

The tires on the machine are pneumatic. Checkthe tires after every 100 hours of operation fordamage and air pressure.

The proper front tire air pressure is 414 kpa(60 psi).

The proper rear tire air pressure is 345 kpa(50 psi).

Torque the front wheel nuts twice in the patternshown to 122--155 Nm (90--110 ft. lbs) after thefirst 50 hours of operation, and every 800 hours ofoperation.

Torque the rear wheel nuts twice to 126--154 Nm(90--110 ft. lbs) after the first 50 hours ofoperation, and every 800 hours of operation.

2

3

4

1

MAINTENANCE

Litter Hawkt 330470 (12--00)76

PUSHING, TOWING, AND TRANSPORTINGTHE MACHINE

PUSHING OR TOWING THE MACHINE

If the machine becomes disabled, it can bepushed from the front or rear, but towed only fromthe rear. It is easier and more stable to tow themachine from the rear.

The propelling pump has a bypass valve toprevent damage to the hydraulic system when themachine is being pushed or towed. This valveallows a disabled machine to be moved for a veryshort distance and at a speed to not exceed 1.6kp/h (1 mph). The machine is NOT intended to bepushed or towed a long distance or at a highspeed.

ATTENTION! Do not push or towmachine for a long distance and withoutusing the bypass valve, or the machinehydraulic system may be damaged.

Remove the debris hopper, and reach behind themain vacuum hose to access the bypass valve.

Turn the bypass valve to the horizontal positionbefore pushing or towing the machine.

TRANSPORTING THE MACHINE

1. Position the rear of the machine at theloading edge of the truck or trailer.

FOR SAFETY: Use truck or trailer thatwill support the weight of the machine.

NOTE: Empty the hopper before transporting themachine.

2. If the loading surface is not horizontal or ishigher than 380 mm (15 in) from the ground,use a winch to load machine.

If the loading surface is horizontal AND is380 mm (15 in) or less from the ground, themachine may be driven onto the truck ortrailer.

MAINTENANCE

77Litter Hawkt 330470 (12--00)

3. To winch the machine onto the truck ortrailer, attach the winching chains to the reartie down locations. The rear tie-downlocations are located near the rear of themachine, on opposite sides of the rearwheels.

4. Turn the bypass valve 90_ from the normalposition before winching the machine ontothe truck or trailer. See PUSHING ORTOWING THE MACHINE section of thismanual. Make sure the machine is centered.

FOR SAFETY: When loading machineonto truck or trailer, use winch. Do notdrive the machine onto the truck ortrailer unless the loading surface ishorizontal AND is 380 mm (15 in) or lessfrom the ground.

5. Position the machine onto the truck or traileras far as possible. If the machine starts toveer off the centerline of the truck or trailer,stop and turn the steering wheel to centerthe machine.

6. Set the parking brake and block the machinetires. Tie down the machine to the truck ortrailer before transporting.

The front tie-down locations are locatedbehind the front tires.

MAINTENANCE

Litter Hawkt 330470 (12--00)78

The rear tie-down locations are the bottomlips at each corner of the rear bumper.

7. If the loading surface is not horizontal or ishigher than 380 mm (15 in) from the ground,use a winch to unload machine.

If the loading surface is horizontal AND is380 mm (15 in) or less from the ground, themachine may be driven off the truck ortrailer.

FOR SAFETY: When unloading machineoff truck or trailer, use winch. Do notdrive the machine off the truck or trailerunless the loading surface is horizontalAND 380 mm (15 in) or less from theground.

MAINTENANCE

79Litter Hawkt 330470 (12--00)

MACHINE JACKING

Empty the hopper before jacking machine. Youcan jack up the machine for service at thedesignated locations. Use a jack or hoist that willsupport the weight of the machine. Always stopthe machine on a flat, level surface and block thetires before jacking up the machine.


The front jacking locations are on the flat bottomedge of the front of the machine frame.

FOR SAFETY: When servicing machine,block machine tires before jacking upmachine.

The rear jacking locations are on the corners ofthe rear frame.

FOR SAFETY: When servicing machine,block machine tires before jacking upmachine.

FOR SAFETY: When servicing machine,jack up machine at designated locationsonly. Block machine up with jackstands.

STORING MACHINE

Before storing the machine for an extended time,the machine needs to be serviced to lessen thechance of rust, sludge, and other undesirabledeposits from forming.

Drain the dust control system water tank beforestoring the machine to prevent water fromfreezing. See the DRAINING THE WATER TANKsection in the MAINTENANCE section of themanual.

SPECIFICATIONS

Litter Hawkt 330470 (12--05)80

SPECIFICATIONS

GENERAL MACHINE DIMENSIONS/CAPACITIES

Item Dimension/capacity

Length (Riding) 2135 mm (84 in)

Length (Walk behind) 2235 mm (88 in)

Height (Riding) 1320 mm (52 in)

Height (Walk behind) 1168 mm (46 in)

Width 915 mm (36 in)

Track 775 mm (30.5 in)

Wheelbase 1010 mm (39.75 in)

Side brush diameter 508 mm (20 in)

Sweeping path width 1270 mm (50 in)

Hopper weight capacity 45 kg (100 lb)

Hopper volume capacity 114 L (30 gal)

Water reservoir volume capacity 45.5 L (12 gal)

Dust filter area 2.8 sq m (30.6 sq ft)

GVWR 727 kg (1600 lb)

GENERAL MACHINE PERFORMANCE

Item Measure

Maximum forward speed 8.0 km/h (5 mph)

Maximum reverse speed 2.4 km/h (1.5 mph)

Minimum turning radius, left 1365 mm (53.75 in)

Minimum turning radius, right 1270 mm (50 in)

Minimum isle turn width, left 3162 mm (124.5 in)

Minimum isle turn width, right 2902 mm ( 114.25 in)

Maximum rated incline with empty hopper 8_

Maximum rated incline with full hopper 8_

SPECIFICATIONS

81Litter Hawkt 330470 (12--99)

POWER TYPE

Engine Type Ignition Cycle Aspiration Cylinders Bore StrokeKubota D722 Piston Diesel 4 Natural 3 67 mm 68 mm

Displacement Net power, governed Net power, maximum

719 cc (43.88 cid) 12.2 kw @ 2400 rpm (14.3 hp) 15.6 kw@ 3600 rpm(20.9 hp)

Fuel Cooling system Electrical systemDieselFuel tank: 13.6L (3.6 gal)

Water/ethylene glycolantifreeze

12 V nominal( g )

Total: 4.8 L (1.25 gal) 40 A alternator

Radiator: 2.8 L (.75 gal)

Idle speed, no load (Fast) governed speed, underload

Engine lubricating oilwith filter

900 + 100 rpm 2400 + 100 rpm 3.25 L (3.4 qt)diesel rating above CDgrade only

STEERING

Type Power source Emergency steering

Rear wheel, manual controlled Manual steering Manual

HYDRAULIC SYSTEM

System Capacity Fluid Type

Hydraulic reservoircapacity

15.20 L (4 gal)Fill to FULL line only

TENNANT part no. 65869 -- above 7_ C (45_ F)TENNANT part no. 65870 -- below 7_ C( 45_ F)

Hydraulic total (allcomponents, plumbing)

19 L (5 gal)TENNANT part no. 65870 below 7 C( 45 F)

BRAKING SYSTEM

Type OperationService brakes Mechanical disc brake (2), one per front wheel,

cable actuatedParking brake Utilizes service brakes, cable actuated

TIRES

Location Type SizeFront (2) Pneumatic 117 x 406 mm (4.6 in x16 in OD)Rear (2) Pneumatic 102 x 305 mm (4 in x 12 in OD)

SPECIFICATIONS

Litter Hawkt 330470 (12--99)82

WALK BEHIND2235 mm (88 in)

1270 mm(50 in)

915 mm(36 in)

1320 mm(52 in)

RIDING2135 mm (84 in)

1168 mm(46 in)

353209MACHINE DIMENSIONS

INDEX

83Litter Hawkt 330470 (2--05)

A

Air filter, 21, 60

Aisle turn, 80

B

BatteriesCharger specifications, 81Specifications, 81

Belts, 62Engine fan belt, 62

Brake pedal, 17

Brakes, 23, 74System specifications, 81

Brushes, 31–34, 50, 65–70Checking side brush pattern, 65Replacing side brush, 66Side brush, 65–67Side brush bristle length, 66

Bypass valve, 76

C

Capacities, 80

Chains, 62

Charging system light, 16

Circuit breakers, 18

Cleaning, 34

Cleaning and brush information, 31–34

Cleaning hopper dust filters, 47

Cleaning spray nozzles, 67

Controls, 7Brake pedal, 17Charging system light, 16Circuit breakers, 18Directional pedal, 9Engine oil pressure light, 15Engine temperature light, 15Fuel level gauge, 10Fuse, 18Hazard Light Switch (001580-- ), 16Horn button, 11Hourmeter, 11On-off key switch, 10Operation, 9Parking brake pedal, 17Power kill switch, 11Steering assembly knob, 12Steering handle, 10Symbols, 6–8Thermo Sentry light, 16Throttle lever, 19

Vacuum fan damper handle, 19Vacuum fan/side brush switch, 13Vacuum head control lever, 19Voice box switch, 13Water pump switch, 14

Coolant level, 22

Cooling system, 59

D

Debris hopper, 63

Diffuser screens, 64

Dimensions, 80

Directional pedal, 9

Draining the water tank, 69

Dust control system, 32, 67

Dust filter, Cleaning, 63

E

Electric motors, 81

ElectricalCircuit breakers, 18Fuse, 18On-off key switch, 10

Emptying the hopper, 42–45

EngineAir filter, 60Battery, 61Cooling system, 59Fan belt, 62Fuel filter, 60Fuel lines, 61

Engine lubrication, 56

Engine oil pressure light, 15

Engine temperature light, 15

F

Filter cleaning tool (option), 63

Filter housing cover seals, 72

Filter seals, 71

Fuel, 21

Fuel filter, 60

Fuel level, 22

Fuel level gauge, 10

Fuses, 18

INDEX

Litter Hawkt 330470 (2--05)84

G

Gauge, Fuel level, 10

H

Handle, Steering, 10

Hazard Light Switch (001580-- ), 16

Hopper, 24Cleaning dust filter, 63Emptying the hopper, 42–45

Hopper , 20

Hopper cover seal, 71

Hopper dust filter information, 63

Hopper dust filters, Removing, 47

Hopper dust filters, cleaning, Filter cleaning tool(option), 63

Hopper seal, 71

Hopper securing bar, 20

Horn button, 11

Hourmeter, 11

How the machine works, 21

Hydraulic fluid, 58

Hydraulic fluid reservoir, 57

Hydraulic hoses, 58

Hydraulics, 57–61Fluid, 58–60Fluid filter, 57Fluid level, 57Hoses, 58Reservoir, 57system specifications, 81

J

Jack points, 79

Jacking up the machine, 79

K

Knob, Steering assembly, 12

L

Leaks, 21

LeverThrottle, 19Vacuum head control, 19

LightCharging system, 16Engine oil pressure, 15Engine temperature, 15

LightsHazard, 16Operating/hazard (000000--001579), 12Operating/hazard (001580-- ), 12Thermo Sentry , 16

Lubrication, 56–58Engine, 56

Lubrication , Rear wheel support bearings, 56

M

Machine, Troubleshooting, 52

Machine components, 5

Machine dimensions, 82

Machine jacking, 79

Machine tie down location, 77

Maintenance, 54Debris Hopper, 63Draining the water tank, 69Dust control system, 67Filter housing cover seals, 72Filter seals, 71Hopper cover seal, 71Hopper dust filters, 63Hopper seal, 71Intervals, 54–56Recommended, 4Spray nozzles, 67Vacuum fan screen, Vacuum fan screen, 73–76Vacuum head skirt, 72Vacuum system, 73–76Vacuum hoses, 73–76Vacuum wand damper, 73–76

Water tank, 69

Maintenance chart, 54–56

Motors, Electric, 81

INDEX

85Litter Hawkt 330470 (2--05)

O

Oil level, 22

On-off key switch, 10

Operating/hazard lights switch (000000--001579),12

Operating/hazard lights switch (001580-- ),12

Operation, 4Filling water tank, 33Hopper , 20Vacuum wand, 36

Operation on inclines, 30

Operator Responsibility, 4

Operator Seat, 20

OptionsFilter cleaning tool, 63Voice box, 51–54Voice box switch, 13

P

Parking brake pedal, 17

Pedal, Directional, 9

PedalsBrake, 17Parking brake, 17

Positioning steering assembly, 25

Post-operation checklist, 50

Power kill switch, 11

Pre-operation checklist, 21

Pushing machine, 76

Pushing or towing the machine, 76

Pushing, towing, and transporting machine, 76

R

Rear wheel support bearings, 56

S

SafetyLabels, 3Precautions, 2–4

Seals, 71–74

Seat, Operator, 20

Securing bar, 20

Service records, 50

Side brush, 65–67Bristle length, 66Checking brush pattern, 65Replacing, 66

Skirts, 50, 71–74

Skirts and sealsFilter housing cover, 72Filter seals, 71Hopper cover seal, 71Hopper seal, 71Vacuum head skirt, 72

Specifications, 80–83Braking system, 81Chargers, 81Electric motors, 81hydraulic system, 81Machine capacities, 80Machine dimensions, 80Machine performance, 80Power type, 81Steering, 81Tires, 81

Spray nozzles, 67

Starting the machine, 27

Steering, 23Specifications, 81

Steering assembly, Positioning, 25

Steering assembly knob, 12

Steering handle, 10

Stop cleaning, 39

Stopping the machine, 40

Storing machine, 79

SwitchTurn signal, 15Vacuum fan/side brush, 13Voice box, 13

SwitchesOn-off key, 10Operating/hazard lights (000000--001579), 12Operating/hazard lights (001580-- ), 12Power kill , 11Water pump, 14

INDEX

Litter Hawkt 330470 (2--05)86

T

Thermo Sentry, 64

Thermo Sentry light, 16

Throttle lever, 19

Tie down location, 77

Tires, 74, 75Specifications, 81

Towing machine, 76

Transporting machine, 76

Transporting the machine, 76

Travel speed, 80

Troubleshooting, 52

Turn signal switch, 15

V

Vacuum fan, Screen, 23

Vacuum fan , Damper, 19

Vacuum fan damper handle, 19

Vacuum fan/side brush switch, 13

Vacuum head control lever, 19

Vacuum head skirt, 72

Vacuum head skirts, 24

Vacuum hoses, 24

Vacuum screen, 23

Vacuum system, 73–76

Vacuum wand operation, 36

Voice box option, 51–54

Voice box switch, 13

W

Water pump switch, 14

Water reservoir, 24

Water tank, 69Filling , 33

Wheel nuts, Torque, 75

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